Arduino Bluetooth Controlled Car with Obstacle Detection and Buzzer | Safety Feature | Mobile APP

😊Hi Friends, In this video, I’ll show you how to make a 4WD Arduino Bluetooth Controlled Car with advanced safety features. 🚗💡 This smart RC car not only moves via Bluetooth but also has an ultrasonic sensor that detects obstacles in front. When an object is detected, the car will automatically stop, and a buzzer alert will notify you instantly. This ensures the car won’t crash and gives you full control to move it backward and avoid the obstacle safely. I’m using a 4WD chassis kit, Arduino Uno, L298N motor driver, HC-05 Bluetooth module, an ultrasonic sensor, and a passive buzzer. You can easily assemble everything step by step as shown in the video. 🧩👉 All required circuit diagrams, Arduino code (ZIP file), and the Bluetooth RC Controller app (APK file) are available on my full web post:- https://robotlk.com/arduino-bluetooth... ✳️ Website - https://robotlk.com/ ✳️ My Facebook page:-  / robot-lk-101113971569889   👉 Purchase links for all components are also provided in the description. 🔰AliExpress Links, 1) Arduino Uno- https://s.click.aliexpress.com/e/_oFE... 2) L298N Motor Drive - https://s.click.aliexpress.com/e/_oml... 3) 4 Wheel Robot Smart Car Chassis Kit -https://s.click.aliexpress.com/e/_omB... 4) HC-05 Bluetooth Module - https://s.click.aliexpress.com/e/_olH... 5) Ultrasonic sensor (HC-SR04) - https://s.click.aliexpress.com/e/_oDm... 6) 2x18650 Batteries - https://s.click.aliexpress.com/e/_oog... 7) 2 Cell 18650 Batteries holder - https://s.click.aliexpress.com/e/_opz... 8) Male and Female Jumper wire/TT Wire - https://s.click.aliexpress.com/e/_oFp... 9) 5V Passive Buzzer - https://s.click.aliexpress.com/e/_Dlj... 🔰 Amazon Links, 1) Arduino Uno- https://amzn.to/4baGxp7 2) L298N Motor Drive - https://amzn.to/3Ohl5Vu 3) 4 Wheel Robot Smart Car Chassis Kit - https://amzn.to/42ikGbu 4) HC-05 Bluetooth Module - https://amzn.to/42hbYdj 5) Ultrasonic sensor (HC-SR04) - https://amzn.to/3HBSWoq 6) 2x18650 Batteries - https://amzn.to/3OiC8Xo 7) 2-cell 18650 Batteries holder - https://amzn.to/3vRYZ5X 8) Male and Female Jumper wire/TT Wire - https://amzn.to/42fjEwI 9)5V Passivei Buzzer - https://amzn.to/3SwAMeb This project is beginner-friendly, fun, and educational — perfect for anyone learning Arduino, robotics, and electronics. With obstacle detection and buzzer alerts, it also demonstrates how safety features can be applied to vehicles. Don’t forget to like, share, and subscribe for more exciting robotics projects from Robot LK! 🔔 🔸 How to assemble the YP 100 Smart robot tank -    • YP100 Robot Smart Tank  Arduino | Raspberr...   🔸 Building The 6 DOF Robotic Arm -    • Building The  6 DOF Robotic Arm | Control ...   🔸 How to control by Bluetooth the YP 100 Smart robot tank -    • YP100 Robot Smart Tank  Arduino | L298N | ...   🔸How To Make Bluetooth RC Car(Two Motor drives) -    • How To Make Bluetooth RC Car - Smartphone ...   🔸How To Make Bluetooth RC Car(One Motor drive) -    • How To Make Bluetooth RC Car with L298N H-...   🔸How to make a Gesture Control Car -    • How to make a Gesture Control Robot Car | ...   🔸Arduino Mecanum Wheels Robot Car -    • Arduino Mecanum Wheels Robot Car | Omni-Di...   🔸Arduino FPV RC Car | FPV System -    • Arduino FPV RC Car | FPV System | Long Ran...   DISCLAIMER: Some of the above links may be affiliate links, meaning if you purchase a product via these links I may receive a small commission/reward, at no additional charge to you. -------- #arduino #4wd #robotics